Create rock art using acrylic paint or pens. Use quality paint/pens, so the design will last outdoors. I love using acrylic pens, as less mess, and easier for the children to use. Always ensure a good drying period.
Acrylic pens work on a variety of surfaces. We have used Kmart drink coasters here. Makes a lovely personalised gift.
Pinterest has a variety of great rock art ideas. Get creative.
Leave the rocks in your local park to brighten somebody's day.
Play Spy = Fun Learning